How can polyploidy affect sympatric speciation?

Sympatric speciation occurs when populations of a species that share the same habitat become reproductively isolated from each other. This speciation phenomenon most commonly occurs through polyploidy, in which an offspring or group of offspring will be produced with twice the normal number of chromosomes.

How sympatric speciation can occur in the absence of polyploidy?

Sympatric speciation without polyploidy For instance, sympatric speciation may take place when subgroups in a population use different habitats or resources, even though those habitats or resources are in the same geographical area. One classic example is the North American apple maggot fly.

How does polyploidy result in speciation?

Polyploidy typically results in instant speciation—the new polyploid may be immediately isolated reproductively from its parent or parents; this process greatly increases biodiversity and provides new genetic material for evolution.

What prevents speciation from occurring in sympatric populations?

Answer and Explanation: Interbreeding prevents speciation from occuring in sympatric populations. Sympatric populations are groups of organisms that live in the same area. …

How can polyploidy cause speciation in plants quizlet?

The result is a diploid gamete that when fused with a haploid gamete produces a fertile offspring. Thus the polyploid has now become reproductively isolated from the original population. The polyploid plant can self-pollinate or it can mate with other polyploid plants. Polyploidy can lead to sympatric speciation.

What causes sympatric speciation?

Sympatric speciation occurs when there are no physical barriers preventing any members of a species from mating with another, and all members are in close proximity to one another. A new species, perhaps based on a different food source or characteristic, seems to develop spontaneously.

Why can polyploidy individuals lead to speciation fairly quickly?

Why can polyploidy individuals lead to speciation fairly quickly? The formation of gametes with new n numbers can occur in one generation. After a couple of generations, enough of these new hybrids can form to reproduce together as a new species.

What is polyploidy explain?

Polyploid means a condition where an organism acquires or general diploid cell involved into one or a set of chromosomes. Sometimes it involves more than one set of chromosomes. In Polyploidy it has been found that it is one of the heritable conditions and more than two sets of chromosomes possess into that process.

What are 2 mechanisms that can decrease gene flow in sympatric populations?

Gene flow can also be reduced in sympatric populations by habitat differation and sexual selection. in evolutionary biology, a process in which natural selection strengthens prezygotic barriers to reproduction, thus reducing the chances of hybrid formation.

What is auto polyploid?

Definition of autopolyploid : an individual or strain whose chromosome complement consists of more than two complete copies of the genome of a single ancestral species.

How does polyploidy cause reproductive isolation quizlet?

How does polyploidy cause reproductive isolation? It alters the number of chromosomes in sex cells.

Which of the following statements is most true concerning speciation by polyploidy?

Which of the following statements is most true concerning speciation by polyploidy? Polyploidy only leads to speciation in plants.